89215689 has 16 divisors (see below), whose sum is σ = 125881344. Its totient is φ = 56086800.

The previous prime is 89215673. The next prime is 89215699. The reversal of 89215689 is 98651298.

It is a happy number.

It is not a de Polignac number, because 89215689 - 2⁴ = 89215673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89215619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4207 + ... + 14004.

It is an arithmetic number, because the mean of its divisors is an integer number (7867584).

Almost surely, 2^89215689 is an apocalyptic number.

It is an amenable number.

89215689 is a deficient number, since it is larger than the sum of its proper divisors (36665655).

89215689 is a wasteful number, since it uses less digits than its factorization.

89215689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18308.

The product of its digits is 311040, while the sum is 48.

The square root of 89215689 is about 9445.4057085972. The cubic root of 89215689 is about 446.8348914008.

The spelling of 89215689 in words is "eighty-nine million, two hundred fifteen thousand, six hundred eighty-nine".